CN110043611B

CN110043611B - Hydraulic clutch gearbox

Info

Publication number: CN110043611B
Application number: CN201910367231.9A
Authority: CN
Inventors: 梅厚凤
Original assignee: Lu'an Yongzhen Grizzly Electrical And Mechanical Technology Co ltd
Current assignee: LU'AN YONGZHEN GRIZZLY ELECTRICAL AND MECHANICAL TECHNOLOGY Co.,Ltd.
Priority date: 2019-05-05
Filing date: 2019-05-05
Publication date: 2020-11-10
Anticipated expiration: 2039-05-05
Also published as: CN110043611A

Abstract

The invention provides a hydraulic clutch gearbox, which comprises a transmission mechanism, a hydraulic clutch and an oil supply control component, wherein the transmission mechanism comprises a power input component and a power output component, the power input component comprises an input shaft connected with an engine, the hydraulic clutch is provided with a plurality of driving gears which are in one-to-one correspondence with the driven gears, the hydraulic clutch in the combination state is used for transmitting the power of the corresponding driven gear to the output shaft, and the oil supply control component is used for supplying hydraulic oil to the hydraulic clutch and controlling the switching of the hydraulic clutch between the combination state and the separation state.

Description

Hydraulic clutch gearbox

Technical Field

The invention relates to a gearbox, in particular to a hydraulic clutch gearbox.

Background

The manual transmission is combined with a driven gear sleeved on an output shaft by controlling a synchronizer fixedly sleeved on the output shaft to transmit power from the driven gear to the output shaft by controlling the synchronizer fixedly sleeved on the output shaft, so that the power on the input shaft is transmitted to the output shaft, the speed change function is realized by combining gears with different transmission ratios, the synchronizer in the transmission is one of the most important parts, a synchronizing ring drives the driven gear to realize presynchronization by utilizing friction force, when the rotating speeds of the synchronizer and the driven gear are approximately same, the synchronizer and the driven gear are stably combined, certain defects exist, the structure is complex, the overhaul and maintenance are difficult, a high-efficiency friction layer playing a decisive role in the performance of the synchronizer is high, the production cost is high, and the gear shifting is labor-saving, so that the manual transmission is ingenious in structure, simple in principle, convenient and labor-saving in operation, The high-efficiency hydraulic clutch transmission is low in production cost.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide the high-efficiency hydraulic clutch transmission which is ingenious in structure, simple in principle, convenient and labor-saving to operate and low in production cost.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.

A hydraulic clutch gearbox comprises a transmission mechanism, a hydraulic clutch and an oil supply control component, wherein the transmission mechanism comprises a power input component and a power output component, the power input component comprises an input shaft connected with an engine, the hydraulic clutch is arranged in a combined state and a separated state which can be mutually switched, the hydraulic clutch is arranged in a separated state, the hydraulic clutch is arranged in a plurality of states and is in one-to-one correspondence with the driven gears, the hydraulic clutch in the combined state is used for transmitting the power of the corresponding driven gear to the output shaft, and the oil supply control component is used for supplying hydraulic oil to the hydraulic clutch and controlling the hydraulic clutch to be switched between the combined state and the separated state;

the driving gear comprises a first driving gear, a second driving gear, a third driving gear and a fourth driving gear, the radius of the first driving gear is sequentially increased, the driven gear comprises a first driven gear, a second driven gear, a third driven gear and a fourth driven gear, the radius of the first driving gear is sequentially decreased, the first driving gear is meshed with the first driven gear to form a first gear set, the second driving gear is meshed with the second driven gear to form a second gear set, the third driving gear is meshed with the third driven gear to form a third gear set, the fourth driving gear is meshed with the fourth driven gear to form a fourth gear set, the transmission ratios of the first gear set, the second gear set, the third gear set and the fourth gear set are sequentially increased, the transmission mechanism further comprises a casing which is mutually engaged and forms a closed inner cavity, three partition plates which are arranged at equal intervals are arranged in the casing, and partition, the first gear set is located in the first transmission area A, the second gear set is located in the second transmission area B, the third gear set is located in the third transmission area C, the fourth gear set is located in the fourth transmission area D, the input shaft is rotatably arranged on the shell, the driving end extends to the outside of the shell, and the output shaft is rotatably arranged on the shell and the output end extends to the outside of the shell.

As a further optimization or improvement of the present solution.

The hydraulic clutch is coaxially sleeved on the output shaft, the driven gear is coaxially and fixedly connected with the hydraulic clutch, the hydraulic clutch comprises a synchronous sleeve which is in spline connection and matching with the output shaft, the synchronous sleeve and the output shaft are coaxially arranged and form sliding guide matching along the axial direction of the synchronous sleeve, a synchronous disc is coaxially sleeved on the outer circular surface of the synchronous sleeve, the synchronous disc and the synchronous sleeve form sliding guide matching along the axial direction of the output shaft, an arc-shaped mounting groove I matched with the synchronous disc is formed in the outer circular surface of the synchronous disc, the mounting groove I is provided with three mounting grooves which are arranged along the circumferential direction of the synchronous disc in an array mode, a mounting groove II arranged along the radial direction of the synchronous disc is formed in the end surface of the synchronous disc, the mounting grooves II are arranged in an array mode along the circumferential direction of the synchronous disc, the middle position of the mounting groove I along the arc direction of the mounting groove, the hub strip is arranged on the outer circular surface of the arc-shaped hub, the hub strip is provided with a plurality of hub strips which are arranged in an array along the arc direction of the hub strip, a connecting block for connecting the inner circular surface of the arc-shaped hub and the synchronizing sleeve is arranged between the inner circular surface of the arc-shaped hub and the synchronizing sleeve, one end of the connecting block is hinged with the arc-shaped hub, the other end of the connecting block is hinged with the synchronizing sleeve, the axial directions of two hinged shafts are perpendicular to the output shaft, the connecting block is positioned in the second mounting groove and is arranged in an inclined manner, the distance between the connecting blocks arranged in the array is gradually reduced;

the outer coaxial cover of synchronization disc is equipped with the combination barrel of being connected the complex with the output shaft rotation, and the open end that combines the barrel is coaxial to be provided with rather than fixed connection's annular apron, and the synchronization disc is fixed in between the bottom and the apron that combine the barrel, and under the initial condition, synchronization cover and the bottom interval of combining the barrel arrange, combine the barrel to deviate from apron one end coaxial to be provided with output shaft rotation connection complex sleeve, driven gear cover locate telescopic outside and both splined connection cooperations, be provided with on the interior disc of combination barrel with hub strip assorted hub groove, the hub groove sets up in a plurality ofly and along combining barrel place circumferencial direction array and arranging, under the initial condition, hub strip and hub groove interval arrange.

As a further optimization or improvement of the present solution.

The outer circular surface of one end of the synchronous sleeve, which is far away from the bottom of the combined cylinder body, is coaxially and rotatably provided with a pushing ring, the hydraulic clutch still including being used for promoting to push away the hydraulic pressure of ring and supporting push mechanism, hydraulic pressure supports and pushes away the mechanism and locates the movable disk on the output shaft including coaxial rotation cover, the movable disk is provided with two and mutual lock, the movable disk is close to one end face each other and is provided with annular seal chamber, the movable disk is close to and is provided with circular mounting groove three on pushing away a ring terminal surface, mounting groove three is provided with a plurality ofly and along the circumferencial direction array arrangement of movable disk, be provided with the hydro-cylinder one of putting through with seal chamber in the mounting groove three, the axial of hydro-cylinder one is on a parallel with the axial of movable disk, coaxial being provided with in the hydro-cylinder one towards supporting push ring extension piston rod one of arranging, piston rod one with support the push ring and inconsistent, set up oiling interface.

As a further optimization or improvement of the present solution.

The outer movable sleeve of the output shaft is provided with a first return spring, one end of the first return spring is abutted against the synchronous sleeve, the other end of the first return spring is abutted against the bottom of the combined barrel, and the elastic force of the first return spring is always directed to the synchronous sleeve from the bottom of the combined barrel.

As a further optimization or improvement of the present solution.

The oil supply control part is positioned above the shell and comprises a hollow square mounting frame, independent oil cylinders II are fixedly arranged on the periphery of the mounting frame, the axial direction of each oil cylinder II is perpendicular to the side length of the corresponding mounting frame, one end, away from each other, of each oil cylinder II is an output end, a connecting guide pipe for connecting and connecting the two oil cylinders is arranged between the output end and the oil injection interface, the two oil cylinders II are correspondingly connected with the sealed cavity one by one, one end, close to each other, of each oil cylinder II is a pressurizing end, a piston rod II which is in sealed sliding guide fit with the inner cavity of the oil cylinder II is arranged at the pressurizing end, the piston rod II extends to the outside of the oil;

a second reset spring is arranged in the second oil cylinder, one end of the second reset spring is abutted against the output end of the second oil cylinder, the other end of the second reset spring is abutted against the second piston rod, and the elastic force of the second reset spring is always directed to the second piston rod from the output end of the second oil cylinder;

the utility model discloses a setting up the guide way that the cross was arranged, the guide way includes that one keeps off the position, two keep off the position, three keep off the position, four keep off the neutral gear position that position and central point put, the notch of guide way is adjusted well about with supporting the pushing block and is arranged, the bottom of mounting bracket is provided with the bracket, be provided with the pin on the bracket, the bottom and the bracket of pin constitute the sphere pair structure, the pin passes the guide way and extends to the top of mounting bracket and extend the end connection and be provided with spherical fender handle, under the initial condition, the pin is located the middle part position of guide way.

As a further optimization or improvement of the present solution.

The limiting blocks which correspond to the first gear, the second gear, the third gear and the fourth gear one by one are arranged below the guide groove, the limiting blocks are arranged close to and perpendicular to the tail end of the first gear/the second gear/the third gear/the fourth gear, one end of each limiting block is arranged in a sharp manner, one side face close to the sharp end is provided with a first inclined face, the other side face is provided with a second inclined face, the first inclined face and the second inclined face are collected at the sharp end of each limiting block, the first inclined face and the second inclined face are arranged close to the neutral position, the first inclined face and the second inclined face are aligned with the first gear/the second gear/the third gear/the fourth gear, one end of each limiting block, which is far away from the sharp end, is embedded into the mounting frame, the two ends form sliding guide fit along the direction perpendicular to the first gear/the second gear/the, spacing spring one end and stopper fixed connection, the other end and mounting bracket fixed connection and initial state lower limiting spring be free state.

As a further optimization or improvement of the present solution.

The second oil cylinder is provided with an oil supplementing interface, the oil supplementing interface can be switched between opening and closing, and the normal use state is closed.

Compared with the prior art, the invention has the advantages of ingenious structure, simple principle and low production cost, the driven gear and the output shaft are combined through the clutch to transmit power, and the separation and the combination of the clutch are manually controlled by a hydraulic system, so that the gear shifting and speed changing operation is more labor-saving.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is a schematic structural diagram of the transmission mechanism.

Fig. 4 is a schematic structural diagram of the transmission mechanism.

Fig. 5 is a diagram showing the engagement of the hydraulic clutch with the output shaft.

Fig. 6 is a diagram showing the engagement of the hydraulic clutch with the output shaft.

Fig. 7 is a schematic diagram of the internal structure of the hydraulic clutch.

Fig. 8 is a schematic diagram of the internal structure of the hydraulic clutch.

Fig. 9 is a schematic diagram of the internal structure of the hydraulic clutch.

Fig. 10 is an exploded view of the hydraulic clutch.

Fig. 11 is a partial structural view of the hydraulic clutch.

Fig. 12 is a schematic structural view of the hydraulic pushing mechanism.

Fig. 13 is a schematic view of the internal structure of the hydraulic pushing mechanism.

Fig. 14 is an exploded view of the hydraulic pushing mechanism.

Fig. 15 is a partial sectional view of the hydraulic pushing mechanism.

Fig. 16 is a connection diagram of the oil supply manipulation member and the hydraulic pressure pushing mechanism.

Fig. 17 is a schematic structural diagram of an oil supply manipulation part.

Fig. 18 is a partial structural view of an oil supply manipulation member.

Fig. 19 is an internal structural view of the oil supply manipulation member.

Fig. 20 is a partial structural view of an oil supply manipulation part.

Fig. 21 is a partial structural view of an oil supply manipulation member.

Labeled as:

100. a transmission mechanism; 101. a housing; 102. a partition plate; 110. a power output member; 111. an output shaft; 112. a first driven gear; 113. a driven gear II; 114. a third driven gear; 115. a driven gear IV; 120. a power input member; 121. an input shaft; 122. a first driving gear; 123. a second driving gear; 124. a driving gear III; 125. driving gear four;

200. a hydraulic clutch; 201. a synchronous sleeve; 202. a synchronization disc; 202a, a first mounting groove; 202b and a second mounting groove; 203. an arcuate hub; 203a, a hub strip; 204. connecting blocks; 205. a limiting ring; 206. combining the cylinder body; 206a, hub slot; 206b, a cover plate; 207. a sleeve; 208. a first return spring; 209. pushing the ring; 210. a hydraulic pushing mechanism; 211. a movable tray; 212. sealing the cavity; 213. an oiling interface; 214. a third mounting groove; 215. a first oil cylinder; 216. a first piston rod;

300. an oil supply manipulation part; 301. a mounting frame; 301a, a fixing plate; 301b, a guide groove; 302. a bracket; 303. a second oil cylinder; 303a, an oil supplementing interface; 304. a piston rod II; 305. pushing the block; 306a, a stop lever; 306b, a gear handle; 307. a limiting block; 308. a limiting spring; 309. a second return spring; 310. connecting the conduit.

Detailed Description

A hydraulic clutch gearbox comprises a transmission mechanism 100, a hydraulic clutch 200 and an oil supply control component 300, wherein the transmission mechanism 100 comprises a power input component 120 and a power output component 110, the power input component 120 comprises an input shaft 121 connected with an engine and a plurality of driving gears fixedly sleeved on the input shaft 121, the power output component 110 comprises an output shaft 111 connected with equipment and a plurality of driven gears movably sleeved on the output shaft 111, the driving gears and the driven gears are meshed in a one-to-one correspondence mode and form gear sets with different transmission ratios, the hydraulic clutch 200 is set to be in a combined state and a separated state which can be switched mutually, the initial state is a separated state, the hydraulic clutch 200 is provided with a plurality of gears and corresponds to the driven gears one-to-one, the hydraulic clutch 200 in the combined state is used for transmitting the power of the corresponding driven gears to the output shaft 111, and the oil supply control component 300 is used for supplying hydraulic oil to the hydraulic clutch 200 and controlling the hydraulic clutch 200 to be in To switch between them.

Specifically, the driving gear comprises a first driving gear 122, a second driving gear 123, a third driving gear 123 and a fourth driving gear 124, the radii of the first driving gear 122, the second driving gear 123, the third driving gear 123 and the fourth driving gear 124 are sequentially increased, the radii of the first driven gear 112, the second driven gear 113, the third driven gear 114 and the fourth driven gear 115 are sequentially decreased, the first driving gear 122 and the first driven gear 112 are meshed to form a first gear set, the second driving gear 123 and the second driven gear 113 are meshed to form a second gear set, the third driving gear 124 and the third driven gear 114 are meshed to form a third gear set, the fourth driving gear 125 and the fourth driven gear 115 are meshed to form a fourth gear set, the transmission ratios of the first gear set, the second gear set, the third gear set and the fourth gear set are sequentially increased, the transmission mechanism 100 further comprises a casing 101, which is mutually engaged and forms a, The driving device comprises a second transmission area B, a third transmission area C and a fourth transmission area D, wherein the first gear set is located in the first transmission area A, the second gear set is located in the second transmission area B, the third gear set is located in the third transmission area C, the fourth gear set is located in the fourth transmission area D, the input shaft 121 is rotatably arranged on the machine shell 101, the driving end of the input shaft extends to the outside of the machine shell 101, and the output shaft 111 is rotatably arranged on the machine shell 101, and the output end of the output shaft extends to the outside of the machine shell 101.

The engine is started, the driving gear drives the driven gear to idle, a user selects a gear set to transmit power from the input shaft 121 to the output shaft 111 according to the requirement of speed increase or speed reduction, and if the speed increase is required, the power is transmitted through the gear set III/gear set IV; if the speed needs to be reduced, the transmission is performed through the first gear set/the second gear set, and the concrete expression of the user in the using process is that the oil supply control component 300 is manually controlled to supply hydraulic oil to the hydraulic clutch 200 corresponding to the driven gear, the hydraulic clutch 200 is switched from the separation state to the combination state, the driving gear drives the driven gear to rotate, the driven gear drives the hydraulic clutch 200 to rotate, the hydraulic clutch 200 drives the output shaft 111 to rotate, and therefore the rotating speed of the input shaft 121 is transmitted to the output shaft 111 through speed increasing/reducing, and the speed changing function is further achieved.

The hydraulic clutch 200 is coaxially sleeved on the output shaft 111, the driven gear is coaxially and fixedly connected with the hydraulic clutch 200, the hydraulic clutch 200 comprises a synchronous sleeve 201 which is in spline connection and matching with the output shaft 111, the synchronous sleeve 201 and the output shaft 111 are coaxially arranged and form sliding guide matching along the axial direction of the synchronous sleeve, a synchronous disc 202 is coaxially sleeved on the outer circular surface of the synchronous sleeve 201, the synchronous disc 202 and the synchronous sleeve 201 form sliding guide matching along the axial direction of the output shaft 111, an arc-shaped mounting groove I202 a matched with the synchronous disc 202 is formed in the outer circular surface of the synchronous disc 202, the mounting groove I202 a is provided with three mounting grooves which are arranged in an array along the circumferential direction of the synchronous disc 202, one end surface of the synchronous disc 202 is provided with a mounting groove II 202b arranged in the radial direction, the mounting grooves II 202b are provided with three mounting grooves which are arranged in an array along the circumferential direction of the synchronous disc 202, the mounting grooves II 202b are positioned in, the first mounting groove 202a is movably provided with an arc hub 203 matched with the first mounting groove, the outer circular surface of the arc hub 203 is provided with a plurality of hub strips 203a, the hub strips 203a are arranged in an array along the arc direction of the hub strips, a connecting block 204 for connecting the inner circular surface of the arc hub 203 and the synchronizing sleeve 201 is arranged between the inner circular surface of the arc hub 203 and the synchronizing sleeve 201, one end of the connecting block 204 is hinged with the arc hub 203, the other end of the connecting block 204 is hinged with the synchronizing sleeve 201, the axial directions of two hinged shafts are perpendicular to the output shaft 111, the connecting block 204 is positioned in the second mounting groove 202b and is obliquely arranged, the distance between the connecting blocks 204 arranged in the array is gradually reduced from the driving end of the output shaft 111 to the output end, in order to limit the connecting block 204 in the second mounting groove 202b, a limiting ring 205 for limiting the connecting block 204, which in turn drives rotation of output shaft 111.

Specifically, in order to drive the rotation of the arc-shaped hub 203, a combination cylinder 206 rotationally connected and matched with the output shaft 111 is coaxially sleeved outside the synchronization disc 202, an annular cover plate 206b fixedly connected with the combination cylinder 206 is coaxially arranged at an opening end of the combination cylinder 206, the synchronization disc 202 is fixed between the bottom of the combination cylinder 206 and the cover plate 206b, in an initial state, the synchronization sleeve 201 and the bottom of the combination cylinder 206 are arranged at an interval, a sleeve 207 rotationally connected and matched with the output shaft 111 is coaxially arranged at one end of the combination cylinder 206, which is far away from the cover plate 206b, a driven gear is sleeved outside the sleeve 207 and is in spline connection and matching with the sleeve, the driven gear drives the combination cylinder 206 to synchronously rotate, in order to enable the combination cylinder 206 to transmit power to the arc-shaped hub 203, hub grooves 206a matched with the hub strips 203a are arranged on an inner circumferential surface of the combination cylinder 206, the hub grooves 206a are arranged in a, in an initial state, the hub strips 203a are arranged at a distance from the hub grooves 206a, by pushing the synchronizing sleeve 201 to slide along the output shaft 111 toward the bottom of the combining cylinder 206, the connecting block 204 gradually expands and pushes the arc-shaped hub 203 to move along the radial direction of the synchronizing disk 202 toward the inner circumferential surface of the combining cylinder 206, the hub strips 203a are clamped into the hub grooves 206a, and the combining cylinder 206 drives the arc-shaped hub 203 to move synchronously.

More specifically, when the pushing of the synchronizing sleeve 201 is cancelled, in order to facilitate the arc-shaped hubs 203 to move close to each other along the radial direction of the synchronizing disc 202 to separate the hub strips 203a from the hub grooves 206a for resetting, a first return spring 208 is movably sleeved outside the output shaft 111, one end of the first return spring 208 abuts against the synchronizing sleeve 201, the other end of the first return spring 208 abuts against the bottom of the combining cylinder 206, and the elastic force of the first return spring 208 always points to the synchronizing sleeve 201 from the bottom of the combining cylinder 206.

In order to push the synchronous sleeve 201 to slide along the output shaft 111 and overcome the elastic action of the first return spring 208 towards the bottom of the combined cylinder 206, the synchronous sleeve 201 is coaxially and rotatably provided with a pushing ring 209 on an outer circular surface of one end of the bottom of the combined cylinder 206, the hydraulic clutch 200 further comprises a hydraulic pushing mechanism 210 for pushing the pushing ring 209, the hydraulic pushing mechanism 210 comprises two movable discs 211 coaxially and rotatably sleeved on the output shaft 111, the two movable discs 211 are mutually buckled, one end surface of each movable disc 211, which is close to the corresponding end surface, is provided with an annular sealing cavity 212, one end surface of each movable disc 211, which is close to the corresponding pushing ring 209, is provided with a plurality of circular mounting grooves three 214, the mounting grooves three 214 are arranged in an array manner along the circumferential direction of the movable discs 211, the first oil cylinders 215 communicated with the sealing cavities 212 are arranged in the mounting grooves three 214, and the axial directions of the first, a first piston rod 216 extending towards the pushing ring 209 is coaxially arranged in the first oil cylinder 215, the first piston rod 216 abuts against the pushing ring 209, and in order to enable the first piston rod 216 to slide outwards along the first oil cylinder 215 to push the pushing ring 209, an oil filling interface 213 is formed in the seal cavity 212, and the oil filling interface 213 is communicated with the oil supply control component 300.

The hydraulic clutch 200 is embodied in that the oil supply control component 300 supplies hydraulic oil to one of the seal cavities 212, the oil pressure in the seal cavity 212 rises and pushes the first piston rod 216 to slide towards the outside along the first oil cylinder 215, the extending end of the first piston rod 216 drives the pushing ring 209 to move synchronously, the pushing ring 209 pushes the synchronizing sleeve 201 to slide along the output shaft 111 near the bottom of the combining cylinder 206, the connecting block 204 gradually expands and pushes the arc-shaped hub 203 to move along the radial direction of the synchronizing disc 202 towards the inner circular surface of the combining cylinder 206, the hub strip 203a is clamped into the hub groove 206a, at this time, the hydraulic clutch 200 is switched from the separating state to the combining state, the driving gear drives the driven gear to rotate, the driven gear drives the combining cylinder 206 to rotate synchronously, the combining cylinder 206 drives the arc-shaped hub 203 combined therewith to rotate synchronously, the arc-shaped hub 203 drives the synchronizing disc 202 to rotate, the synchronous disc 202 drives the synchronous sleeve 201 to rotate, the synchronous sleeve 201 drives the output shaft 111 to rotate, the hydraulic clutch 200 switched to the combination state transmits the power of the corresponding driven gear to the output shaft 111 for output, and a user selects to supply hydraulic oil to the hydraulic clutches 200 corresponding to different gear sets, so that the functions of speed increasing and speed reducing are realized.

The oil supply control component 300 is positioned above the machine shell 101, the oil supply control component 300 comprises a hollow square mounting frame 301, independent oil cylinders 303 are fixedly arranged on the periphery of the mounting frame 301, the axial directions of the oil cylinders 303 are perpendicular to the side length corresponding to the mounting frame 301, the ends, away from each other, of the oil cylinders 303 are output ends, a connecting guide pipe 310 for connecting and connecting the output ends and the oil filling connector 213 is arranged between the output ends and the oil filling connector 213, the oil cylinders 303 are correspondingly connected with the sealing cavities 212 one by one, the ends, close to each other, of the oil cylinders 303 are pressurization ends, the pressurization ends are provided with piston rods 304 which form sealed sliding guide fit with the inner cavities of the oil cylinders 303, the piston rods 304 extend to the outer parts of the oil cylinders 303, the extending ends are connected with abutting blocks 305, the piston rods 304 slide towards the inner parts of the oil cylinders 303 by pushing the abutting blocks 305, and the hydraulic oil in the second oil cylinder 303 is pumped into the sealed cavity 212.

Specifically, when the user cancels the pushing of the abutting block 305, in order to enable the hydraulic oil in the first oil cylinder 215 to flow back into the second oil cylinder 303 and reset the hydraulic clutch 20 to the separated state, the second piston rod 304 needs to slide towards the outside of the second oil cylinder 303, for this reason, a second return spring 309 is arranged in the second oil cylinder 303, one end of the second return spring 309 abuts against the output end of the second oil cylinder 303, the other end of the second return spring 309 abuts against the second piston rod 304, and the elastic force of the second return spring 309 always points to the second piston rod 304 from the output end of the second oil cylinder 303.

More specifically, as can be seen from the above description, the oil supply control component 300 can only supply hydraulic oil to one of the hydraulic clutches 200 at most once, in order to facilitate pushing of the abutting block 305, a circular fixing plate 301a is detachably disposed at a middle position of an upper end surface of the mounting frame 301, a cross-shaped guide groove 301b is formed in the fixing plate 301a, the guide groove 301b includes a first gear, a second gear, a third gear, a fourth gear and a neutral position at a central position, a notch of the guide groove 301b is vertically aligned with the abutting block 305, a bracket 302 is disposed at a bottom of the mounting frame 301, a stopper rod 306a is disposed on the bracket 302, a bottom end of the stopper rod 306a and the bracket 302 form a spherical pair structure, the stopper rod 306a passes through the guide groove 301b to extend to an upper position of the mounting frame 301, an extending end of the stopper rod 306a is connected with a spherical stopper 306b, and in an initial state, the stopper rod 306, the hydraulic oil in the second oil cylinder 303 is injected into the first oil cylinder 215 by pulling the bar 306a to slide along the first gear/second gear/third gear/fourth gear of the guide groove 301b, so that the bar 306a abuts against the push block 305.

More specifically, after the user puts the lever 306a into the first gear/the second gear/the third gear/the fourth gear, the manual control on the lever 306a is cancelled, and the lever 306a needs to be restricted into the first gear/the second gear/the third gear/the fourth gear, for this purpose, the lower portion of the guide groove 301b is provided with the limiting blocks 307 corresponding to the first gear, the second gear, the third gear and the fourth gear one by one, the limiting blocks 307 are arranged near the tail end of the first gear/the second gear/the third gear/the fourth gear and are perpendicular to the tail end of the first gear/the second gear/the third gear/the fourth gear, one end of the limiting blocks 307 is arranged in a sharp manner, one side surface of the limiting blocks near the sharp end is provided with the first inclined surface, the other side surface is provided with the second inclined surface, the first inclined surface and the second inclined surface are arranged near the sharp end of the limiting blocks 307 and the first inclined surface is aligned with, the limiting block 307 deviates from the sharp end, one end of the limiting block is embedded into the mounting frame 301, the two sides of the limiting block 307 form sliding guide fit along the direction perpendicular to the first gear, the second gear, the third gear and the fourth gear, a limiting spring 308 arranged in parallel is arranged between the limiting block 307 deviating from the sharp end and the mounting frame 301, one end of the limiting spring 308 is fixedly connected with the limiting block 307, the other end of the limiting spring is fixedly connected with the mounting frame 301, and the limiting spring 308 is in a free state in an initial state.

The oil supply control component 300 is embodied in that, during the operation, when a user needs to transmit the power of the input shaft 121 to the output shaft 111, the user holds the stop handle 306b to press the first inclined plane and to engage into the first gear/second gear/third gear/fourth gear against the elastic force of the limiting spring 308, and then the limiting block 307 maintains the stop lever 306a in the first gear/second gear/third gear/fourth gear, during which the stop lever 306a presses the pushing block 305 and slides the corresponding second piston rod 304 towards the second oil cylinder 303, the second oil cylinder 303 injects hydraulic oil into the sealed cavity 212 through the connecting conduit 310, the oil pressure in the sealed cavity 212 gradually rises into the first oil cylinder 215, so that the first piston rod 216 slides towards the outside of the first oil cylinder 215 to push the pushing ring 209, one of the hydraulic clutches 200 is switched from a separation state to a combination state, the driven gear transmits power to the output shaft 111 and drives the output shaft 111 to rotate synchronously, and a user can put the stop lever 306a into a low-speed gear position, so that the hydraulic clutch 200 corresponding to the small transmission ratio gear set is switched to the combination state and decelerates; the gear lever 306a can also be engaged to a high-speed gear, so that the hydraulic clutch 20 corresponding to the large transmission ratio gear set is switched to a combined state to increase the speed; when the engine is stopped, the stop lever 306a is put into neutral, and the engine is turned off.

As a more optimized scheme of the invention, in order to avoid the loss of the hydraulic oil in the second oil cylinder 303 in the long-term use process, the second oil cylinder 303 is provided with an oil supplementing interface 303a, the oil supplementing interface 303a can be switched between opening and closing and is closed in a normal use state, if the loss of the hydraulic oil in the second oil cylinder 303 is overlarge, the oil supplementing interface 303a is opened, proper hydraulic oil is injected, and then the oil supplementing interface 303a is closed.

Claims

1. A hydraulic clutch transmission, characterized by: it comprises a transmission mechanism, a hydraulic clutch and an oil supply control component, wherein the transmission mechanism comprises a power input component and a power output component, the power input component comprises an input shaft connected with an engine, the hydraulic clutch is arranged in a combined state and a separated state which can be mutually switched, the hydraulic clutch is arranged in a separated state, the hydraulic clutch is arranged in a plurality of states and is in one-to-one correspondence with the driven gears, the hydraulic clutch in the combined state is used for transmitting the power of the corresponding driven gear to the output shaft, and the oil supply control component is used for supplying hydraulic oil to the hydraulic clutch and controlling the hydraulic clutch to be switched between the combined state and the separated state;

the driving gear comprises a first driving gear, a second driving gear, a third driving gear and a fourth driving gear, the radius of the first driving gear is sequentially increased, the driven gear comprises a first driven gear, a second driven gear, a third driven gear and a fourth driven gear, the radius of the first driving gear is sequentially decreased, the first driving gear is meshed with the first driven gear to form a first gear set, the second driving gear is meshed with the second driven gear to form a second gear set, the third driving gear is meshed with the third driven gear to form a third gear set, the fourth driving gear is meshed with the fourth driven gear to form a fourth gear set, the transmission ratios of the first gear set, the second gear set, the third gear set and the fourth gear set are sequentially increased, the transmission mechanism further comprises a casing which is mutually engaged and forms a closed inner cavity, three partition plates which are arranged at equal intervals are arranged in the casing, and partition, the first gear set is positioned in the first transmission area A, the second gear set is positioned in the second transmission area B, the third gear set is positioned in the third transmission area C, the fourth gear set is positioned in the fourth transmission area D, the input shaft is rotatably arranged on the shell, the driving end extends to the outside of the shell, the output shaft is rotatably arranged on the shell, and the output end extends to the outside of the shell;

the hydraulic clutch is coaxially sleeved on the output shaft, the driven gear is coaxially and fixedly connected with the hydraulic clutch, the hydraulic clutch comprises a synchronous sleeve which is in spline connection and matching with the output shaft, the synchronous sleeve and the output shaft are coaxially arranged and form sliding guide matching along the axial direction of the synchronous sleeve, a synchronous disc is coaxially sleeved on the outer circular surface of the synchronous sleeve, the synchronous disc and the synchronous sleeve form sliding guide matching along the axial direction of the output shaft, an arc-shaped mounting groove I matched with the synchronous disc is formed in the outer circular surface of the synchronous disc, the mounting groove I is provided with three mounting grooves which are arranged along the circumferential direction of the synchronous disc in an array mode, a mounting groove II arranged along the radial direction of the synchronous disc is formed in the end surface of the synchronous disc, the mounting grooves II are arranged in an array mode along the circumferential direction of the synchronous disc, the middle position of the mounting groove I along the arc direction of the mounting groove, be provided with the hub strip on the outer disc of arc hub, the hub strip is provided with a plurality ofly and arrange along arc hub circular arc direction array, be provided with between the interior disc of arc hub and the synchronous cover and be used for connecting block between them, connecting block one end is connected with arc hub is articulated, the other end is connected with synchronous cover is articulated, the equal perpendicular to output shaft of articulated shaft that articulated department of connecting block and arc hub constitute and the articulated shaft that connecting block and synchronous cover articulated department constitute, the connecting block is located mounting groove two and the slope is arranged, the distance between the connecting block that the array was arranged reduces by the directional output of drive end of output shaft gradually, coaxial fixed being provided with is used for carrying out spacing collar to the.

2. The hydraulic clutch transmission of claim 1, wherein: the outer coaxial cover of synchronization disc is equipped with the combination barrel of being connected the complex with the output shaft rotation, and the open end that combines the barrel is coaxial to be provided with rather than fixed connection's annular apron, and the synchronization disc is fixed in between the bottom and the apron that combine the barrel, and under the initial condition, synchronization cover and the bottom interval of combining the barrel arrange, combine the barrel to deviate from apron one end coaxial to be provided with output shaft rotation connection complex sleeve, driven gear cover locate telescopic outside and both splined connection cooperations, be provided with on the interior disc of combination barrel with hub strip assorted hub groove, the hub groove sets up in a plurality ofly and along combining barrel place circumferencial direction array and arranging, under the initial condition, hub strip and hub groove interval arrange.

3. A hydraulic clutch transmission as claimed in claim 2, characterised in that: the outer circular surface of one end of the synchronous sleeve, which is far away from the bottom of the combined cylinder body, is coaxially and rotatably provided with a pushing ring, the hydraulic clutch still including being used for promoting to push away the hydraulic pressure of ring and supporting push mechanism, hydraulic pressure supports and pushes away the mechanism and locates the movable disk on the output shaft including coaxial rotation cover, the movable disk is provided with two and mutual lock, the movable disk is close to one end face each other and is provided with annular seal chamber, the movable disk is close to and is provided with circular mounting groove three on pushing away a ring terminal surface, mounting groove three is provided with a plurality ofly and along the circumferencial direction array arrangement of movable disk, be provided with the hydro-cylinder one of putting through with seal chamber in the mounting groove three, the axial of hydro-cylinder one is on a parallel with the axial of movable disk, coaxial being provided with in the hydro-cylinder one towards supporting push ring extension piston rod one of arranging, piston rod one with support the push ring and inconsistent, set up oiling interface.

4. A hydraulic clutch transmission as claimed in claim 3, characterised in that: the outer movable sleeve of the output shaft is provided with a first return spring, one end of the first return spring is abutted against the synchronous sleeve, the other end of the first return spring is abutted against the bottom of the combined barrel, and the elastic force of the first return spring is always directed to the synchronous sleeve from the bottom of the combined barrel.

5. A hydraulic clutch transmission according to claim 1 or 3, characterised in that: the oil supply control part is positioned above the shell and comprises a hollow square mounting frame, independent oil cylinders II are fixedly arranged on the periphery of the mounting frame, the axial direction of each oil cylinder II is perpendicular to the side length of the corresponding mounting frame, one end, away from each other, of each oil cylinder II is an output end, a connecting guide pipe for connecting and connecting the two oil cylinders is arranged between the output end and the oil injection interface, the two oil cylinders II are correspondingly connected with the sealed cavity one by one, one end, close to each other, of each oil cylinder II is a pressurizing end, a piston rod II which is in sealed sliding guide fit with the inner cavity of the oil cylinder II is arranged at the pressurizing end, the piston rod II extends to the outside of the oil;

6. The hydraulic clutch transmission of claim 5, wherein: the limiting blocks which correspond to the first gear, the second gear, the third gear and the fourth gear one by one are arranged below the guide groove, the limiting blocks are arranged close to and perpendicular to the tail end of the first gear/the second gear/the third gear/the fourth gear, one end of each limiting block is arranged in a sharp manner, one side face close to the sharp end is provided with a first inclined face, the other side face is provided with a second inclined face, the first inclined face and the second inclined face are collected at the sharp end of each limiting block, the first inclined face and the second inclined face are arranged close to the neutral position, the first inclined face and the second inclined face are aligned with the first gear/the second gear/the third gear/the fourth gear, one end of each limiting block, which is far away from the sharp end, is embedded into the mounting frame, the two ends form sliding guide fit along the direction perpendicular to the first gear/the second gear/the, spacing spring one end and stopper fixed connection, the other end and mounting bracket fixed connection and initial state lower limiting spring be free state.

7. The hydraulic clutch transmission of claim 5, wherein: the second oil cylinder is provided with an oil supplementing interface, the oil supplementing interface can be switched between opening and closing, and the normal use state is closed.